摘要
以双氢封端聚硅氧烷、丁子香酚为原料,通过硅氢加成制备了双丁子香酚封端聚硅氧烷,并用红外光谱、核磁共振氢谱、凝胶渗透色谱等进行表征。结果表明,相比于三甲基氯硅烷,六甲基二硅氮烷更适合作为硅氢加成的羟基保护剂;此反应的最佳条件为:本体聚合、温度不超过100℃、反应时间4 h、催化剂用量10×10^(-6)。
Double eugenol terminated polysiloxane with different molecular weights and narrow distribution coefficient were prepared by hydrosilylation with dihydro terminated polysiloxane and eugenol as the raw mate- rials, and Karstedt catalyst as catalyst. The product was characterized by FT -IR, 1n NMR and GPC. Re- sults showed that compared to TMSC1, HMDS was more suitable to be as the hydroxy protecting agent in hydrosilylation, and the optimal conditions for the reaction were as followed： the temperature did not exceed 100 ℃, bulk polymerization, reaction time was 4 h, and the amount of catalyst was 10 ×10-6.
出处
《有机硅材料》
CAS
2016年第5期380-384,共5页
Silicone Material
关键词
双氢封端聚硅氧烷
六甲基二硅氮烷
羟基
硅氢加成
本体聚合
红外光谱
dihydro terminated polysiloxane, 1,1,1,3,3,3 - hexamethyldisilazane, hydroxy, hydrosilyla- tion, bulk polymerization, infrared spectrum
